# What are the odds of raising a Series B, and when do they run out?

About 30% ever graduate. The two curves — odds already spent and odds remaining — cross at roughly month 27, the moment a company has a better chance of being already funded than of ever being funded. By month 36 the hazard is below half its peak and 72% of eventual graduates are through.

A bridge round is a lifeline, not a tombstone: among companies still B-less at month 24, those who took a smaller interim round went on to raise a real B 25.8% of the time versus 15.8% for those who didn't. Round size matters too — the $8–18M A band graduates best, an inverted U.

## Sources

- **Measurement** — [The Series B Clock](https://www.leanscale.team/knowledge/research/series-b-clock/)

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Cluster: Fundraise · https://www.leanscale.team/knowledge/answers/odds-of-raising-series-b/